Tim,
the 1920 would be either a year or gov't marking (most likely the latter). The "germany" is a sign of being sold commercially, most likely during the 1920's and early 1930's.
$1200 is not bad, but not wonderful. A "commericial" in 7.65mm (30 luger) usually goes for around $1k, max...
I think the price is a bit high...
Ed
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